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Hatshy [7]
3 years ago
9

Factor: x2 + 9x - 36

Mathematics
2 answers:
blagie [28]3 years ago
7 0

Answer:

11x-36

for your answers

kykrilka [37]3 years ago
4 0

Answer:

x= -12

or

x=3

Step-by-step explanation:

in order to factorise the equation x² + 9x - 36

it will be expressed like this to make it a complete equation by subtracting 36 from both sides

x² + 9x - 36=0

the next step is to look for two numbers that when multiplied will give us -36 and when added together it will give us 9.

the numbers would be -3 and 12

so we have

x²-3x + 12x -36 =0

x(x-3) + 12(x-3) = 0

(x+12)(x-3)=0

we have,

x + 12 =0

x = -12

or

x-3 =0

x= 3

Therefore, the factors for x are  -12 or 3.

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What is the answer 2(4y+1)=3y
SCORPION-xisa [38]
2(4y+1) = 3y. We need to solve for y.
First let's get ride of the parenthesis by developing 2(4y+1). This means to multiply 2 by 4y and 2 by 1, and add them.
2(4y+1) = 2*4y + 2*1 = 8y + 2
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Then you subtract 8y from each side to have the variables on a side and the numbers on the other:
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Then you divide each side by -5 to get the variable y alone on a side and its value on the other:
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You can re-check your answer (very important):
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4 0
3 years ago
A rectangular field has an area 28800 sq.meter.its length is twice as long as its width.what is the length of its sides?
AVprozaik [17]
Let 
x---------> the length side of rectangle
y---------> the width side of rectangle

we know that
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the answer is
the length side of rectangle is 240 m
 the width side of rectangle is 120 m


5 0
3 years ago
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